Refrigeration Jacket for Dough Mixer Temperature Control
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Solution Overview
Problem
Bread dough often becomes sticky and difficult to process during mixing due to temperature rise caused by friction and viscous shear, which existing mixers with cooled components fail to adequately control.
Innovation Solution
A dough mixer with a refrigeration jacket mounted to the exterior of the mixing bowl, featuring channel members with elongated center panels and bent legs that allow coolant to flow along the bowl's periphery, maintaining controlled temperatures during the mixing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooled mixing components are used to control temperature, then temperature control is improved, but the mixing components become sticky and difficult to process
Solution Approach 1:
The refrigeration jacket is divided into multiple channel members, each with multiple flow passages. This segmentation allows coolant to flow through multiple separate paths, increasing the surface area for heat transfer and improving temperature control efficiency without requiring a single large complex component.
Solution Approach 2:
The channel members extend in multiple dimensions around the mixing bowl - some channels extend longitudinally along the bowl while others extend circumferentially. This multi-dimensional arrangement maximizes the cooling surface area contact with the dough without interfering with the mixing action, effectively controlling temperature while preventing stickiness.
2Temperature
If refrigeration jacket is added to control temperature, then temperature regulation is improved, but device complexity increases
Solution Approach 1:
The channel members serve multiple functions: they provide structural support to the mixing bowl, act as the refrigeration cooling system, and reinforce the overall mixer structure. By making the channel members multi-functional, the patent avoids adding separate components for each function, thereby controlling device complexity while achieving effective temperature regulation.
Solution Approach 2:
The refrigeration system is merged with the structural framework of the mixing bowl. The channel members are integrated into the bowl structure itself rather than being added as separate external components. This merging reduces the number of separate parts, simplifies assembly, and controls overall device complexity while maintaining effective temperature control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The refrigeration jacket effectively regulates the dough's temperature, preventing stickiness and improving processing conditions by maintaining a consistent temperature, even in large-capacity mixers, while also reinforcing the bowl's structure for enhanced heat transfer and cooling efficiency.
Implementation Method 1
The refrigeration jacket includes a plurality of channel members... through which a cooling fluid passes
Data Source
AI summary
A dough mixer includes a cabinet and a bowl supported within the cabinet. The bowl includes a bowl body defining an opening through which dough is inserted into the bowl for a mixing operation. An agitator is mounted in the bowl for rotation therein. A refrigeration jacket is mounted to an exterior of the bowl body. The refrigeration jacket includes a plurality of channel members. Each channel member includes a unitary plate member having an elongated center panel extending along a periphery of the bowl body. The center panel is spaced from and facing the bowl body. A first leg is connected to the center panel by a first bend. The first leg extends toward the bowl body. A second leg is connected to the center panel by a second bend. The second leg extends away from the bowl body.